Finding the Fourth Proportional to 76,336.66, 105,357.19 and 42,356.08
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Solution
The fourth proportional to 76,336.66, 105,357.19 and 42,356.08 is: 58,458.38
Step by Step Solution
- Step 1: Write the proportion equation
76,336.66 : 105,357.19 = 42,356.08 : x - Step 2: Convert to fraction form
76,336.66/105,357.19 = 42,356.08/x - Step 3: Cross multiply
76,336.66x = 105,357.19 × 42,356.08 - Step 4: Simplify right side
76,336.66x = 4,462,517,568.22 - Step 5: Solve for x
x = 4,462,517,568.22/76,336.66 - Step 6: Final answer
x = 58,458.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.